4-1/2in. Stroke Flywheel Assembly. Fits 114ci & 117ci Milwaukee-Eight 2017up. - S&S Carburetors & Carburetor Kits * Fits stock 4-1/2″ Fat

* Fits stock 4-1/2″ Fat Bob tank dashes found on Road King

* Big Twin 1970-1982 requires purchase of Ignition Rotor # SS55-1247 & VOES Switch Kit # SS55-1248

* If your Thrashin OG risers top clamp does not have two holes drilled on the underside (see video link)

* No Oiling Required

Proudly Made in the USA by Performance Machine

4-1/2in. Stroke Flywheel Assembly. Fits 114ci & 117ci Milwaukee-Eight 2017up. - S&S Carburetors & Carburetor Kits * Fits stock 4-1/2″ FatThe Crankshaft is the heart of any performance engine and S&S Cycle has been perfecting the art for over six decades. Stronger, more durable, and trued to a spec others can only dream of, our new crankshaft assemblies for the Milwaukee Eight platform are the best of the best to build your high performance engine around. * 4 1 2 Stroke (Stock in 114ci engines) * Tapered Wristpin for OEM style pistons & compatible with S&S 128ci kit * Heat Treated 4140